Summary: The safest and easiest way to bridge assets between Ethereum and Optimism is through a trusted cross-chain DEX. With this method, users can connect their MetaMask or alternative Web3 wallet and transfer assets like ETH, USDC, USDT and other tokens between both networks.

Based on our analysis, we recommend the Synapse Protocol to transfer between ETH and OP because they are the most trusted and secure cross-chain bridge. Their platform offers deep-liquidity, low fees and fast finality to move assets between the Layer 1 and Layer 2 networks.

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How to Bridge from Ethereum (ETH) to Optimism

The best way to bridge from Ethereum (ETH) to the Optimism L2 is through a cross-chain DEX like Synapse Protocol. Their platform allows you to bridge ETH, or stablecoins like USDC or USDT for the lowest fees on market.

Follow this step-by-step guide to transfer your funds to Optimism from ETH.

  1. Visit the Synapse Protocol and sign with Metamask or another Web3 Wallet.
  2. Select ETH as your current network & Optimism as your destination network.
  3. Input the token you want to bridge to Optimism (ETH, USDC, USDT or DAI).
  4. Confirm the details and process the transaction. Your funds will arrive on Optimism in under 2 minutes.
ETH to Optimism Bridge
Bridging 0.03 ETH to Optimism via Synapse Protocol.

Add Optimism Network to Metamask Wallet

If you want to manually add the Optimism Network to your Metamask Wallet, you will need to input the RPC details in your wallet Settings. The following information is the verified Optimism Network RPC information:

Bridging Fees from ETH to Optimism

The bridging fees from Ethereum to Optimismtic Ethereum can be up to $100 depending on the demand for block-space on the ETH network. With that said, Synapse Protocol is up to 30% cheaper than most other bridges thanks to their innovative interoperability DEX that minimizes slippage across networks.

About Optimism

Optimism is an Ethereum scaling solution using optimistic rollups to enhance transaction speed and reduce costs. Developed by, it enables users to interact with decentralized apps and smart contracts while keeping data off-chain, combining decentralization with scalability. With over $1 billion in value across applications like AAVE, Synthetix, and Velodrome, Optimism is live on mainnet and offers an incentives program to attract total value locked.


Final Thoughts

In conclusion, the most secure and straightforward way to bridge assets between Ethereum and Optimism is through a trusted cross-chain DEX, such as Synapse Protocol. With deep liquidity, low fees, and fast finality, Synapse enables users to transfer assets like ETH, USDC, USDT, and other tokens between Layer 1 and Layer 2 networks efficiently. By following the step-by-step guide and adding the Optimism Network to MetaMask, users can easily move their funds between Ethereum and Optimism while enjoying competitive bridging fees.